Alluring, like sirens, some vicious weeds produce beautiful flowers in calming purple hues. Here are the problematic blossoms ...

When in bloom, the plants produce stalks of flower blossoms in shades of purple, blue, and pink in addition to white. The genus name comes from the ancient Greek word delphínion, which means ...

This variety blooms in September and October with dark-purple, daisy-like flowers that can almost completely cover the two-foot-tall mounds. The flowers are also a good source of late-season ...